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Under the Polygenic Model, for traits, like height, to be continuous in a population there must be many genes that code for the trait. Otherwise, the expression of the trait is limited by the number of possible combinations of alleles. The many genes which code for the continuous trait are also further modified by environmental conditions. [3]
•Python code for maintaining the list •List of human protein-coding genes page 1 covers genes A1BG–EPGN •List of human protein-coding genes page 2 covers genes EPHA1–MTMR3 •List of human protein-coding genes page 3 covers genes MTMR4–SLC17A7 •List of human protein-coding genes page 4 covers genes SLC17A8–ZZZ3
The euplotid nuclear code; The bacterial, archaeal and plant plastid code; The alternative yeast nuclear code; The ascidian mitochondrial code; The alternative flatworm mitochondrial code; The Blepharisma nuclear code [4] The chlorophycean mitochondrial code (none) (none) (none) (none) The trematode mitochondrial code; The Scenedesmus obliquus ...
Mendelian traits behave according to the model of monogenic or simple gene inheritance in which one gene corresponds to one trait. Discrete traits (as opposed to continuously varying traits such as height) with simple Mendelian inheritance patterns are relatively rare in nature, and many of the clearest examples in humans cause disorders.
5-HTTLPR (serotonin-transporter-linked promoter region) is a degenerate repeat (redundancy in the genetic code) polymorphic region in SLC6A4, the gene that codes for the serotonin transporter. Since the polymorphism was identified in the middle of the 1990s, [ 1 ] [ 2 ] it has been extensively investigated, e.g., in connection with ...
The genetic code was once believed to be universal: [21] a codon would code for the same amino acid regardless of the organism or source. However, it is now agreed that the genetic code evolves, [ 22 ] resulting in discrepancies in how a codon is translated depending on the genetic source.
One example of oligogenic inheritance is a case where one gene is sufficient to cause a trait, however its penetrance or expressivity is influenced by another gene, called a modifier. An example of such a case is the gene TGFB1 which modified a person's risk of developing Alzheimer's disease if they are carrying the disease variant of the gene ...
Detail of a human metaphase spread. A region in the pseudoautosomal region of the short arms of the X chromosome (left) and the Y chromosome (top right) was detected by fluorescent in situ hybridization (green). Chromosomes counterstained in red.